Valve



Sep t.22,-T953 R. 1'. CORNELIUS 2,553,005

VALVE Original Filed Dec. 2. 1949 2 Sheets-Sheet l n mmm I mm M wmwwm SePt- 22, 1953 R. T. CORNELIUS 2,653,005

VALVE Original F'ild Dec. 2, 1949 2 Sheets-Sheet 2 22 58 63 f ,on v v FIG.2

me/who@ RICHARD T. CORNELIUS @gw 7d/fw anguria( Y ATTORNEYS Patented Sept. 22, 1953 0F F ICE 130,727 Divided and "6, 1959,;Serial N o. 1.42,

l Thissapplication is f aedivision e-ofimfy applicanation fior.l patent 'ior'f DiaphragmrPump Serial .No. 130,727; filed' December 2 I 19.49.

' The "herein disclosed s .invention-relatesto self closing r valves and has for l an -obiect to.provide la. valve in` which the cross-sectional' area of the .Y opening fthe valve wis relativelysgreat .with a -minimumrelative movement Aof the parts.

Another object of the invention residesin providing a valve in Whichpositive-closuremay-be effected-to prevent leakage.

IA lstill-"further @object-.off the: invention resides iin'.providing-.aJ ivalveA insvvhich= the. moving...parts :arel of: rubber or` some .other similar :suitable nex- .sible material.

obj ectnof.. the"A invention resides `in providing .f a :valvefsuitableofor use i:in..a-.=waterf-.pump and in whichl. hammering .and :other :noises caused: .by ;the.interruption.of-the flow of thelwaterpumped @ris ereat1y.reduced.

..dlriotherpobject,` of.` :the invention; resides impro- -tviding-,avalve .which .will readilypass. sand .with- -iuut isniury :to the.fvalvesorfrendering l the..- same @inoperative .f A vfurtherxaobject @of the-.invention vresides. in providinga: vali/ed which :the 1 resistance .-to.J reversemow ofi liquid hrough-fthervalve .increases @with theizincrease .tof pressure about .fthe cvalve.

tAnother4 object 4otithe .inventionresides in prohiena-ra:fsmallfzzeiortisV requiredeto operate `the -fva1ve aA; lstillcrfurther. object :.of-.ztherf` invention. resides -1in;.providing a:.valve.1;in whiclr the ,-twol .cooperating-valvemembers; are. both-flexible.

.sfAnfobiect-...ioffgthe invention residesin providzingia valve; sin which' the discharge: occurs in a number of opposite directions normaleto .the difrection ofyow. ofgtheylgiquid; entering, the.. valve. .3A still `:further .object Vof;the:invention resides in providing a valve` circular :inaform and having 1 annular f discharge` opening through :Whichthe vrdischargezmay;4 occur.radiallyi inv various ,opposed directions abeutthe-erltre extentoftheopenine. .-Anotherr; objectofffthe: invention residesin conrfstructingthe;valve;1v1ith two'dishv-.shaned valve membersa arranged. infl facingffrelation.andaghavring flexible: rims: edaptedgto cooperate with'. one ,another .to permit oi-,passasefofrliquid yfrorrrthe .,space .within said members -and `exter-iorly from* e; -betweensaidyrims; analyte exclude. reverse .travel of the liquid.

A. stillffurtherzobiectf ofV the..inrentionsresides .ijin;providng a perforate rlsleeve.zseparatingeaid avidingfa; valvemhich israpid inioperationand .in :1.:

v rectedi, said sleeve havingra'dial openings through which thef liquid passes uponescaping from the valve.

.Another object of the invention residesin pro- '.viding dish shapedsupports .-withinthe valve engaging the. sleeve and the valve members and ...preventing collapse of; the valve4 members.. when the pressureeabout the valve reachesa relatively fhigh value.

AOther .objects of the invention .1 reside v in the ,.novel.c@.Il'ibinationy and Verrang.ement of partsand .1in lthegdetails of..mnstructionhereinaftery illustrated.and/orfdesribed.

Forz'the purpose ,of illustrations.. diaphragm 'pump has been. shown.` suitable.. foruse `in pump- 1 ing water. :'Ihis.- ,pumpf has. a pump bodyU pro- -viding .a. pressure chamber ...andwith .which .is .associated a piston operating .a diaphragm .adapted to .create .pressure Within' the pressure .ehamben Mounted in afwall dening said. chamber are `two l.valves embodying the invention A. claimedv herein, .onelof thesevalves beingan inlet Y. valve` andi-the other. an. .outletmvalve f-.Both..of

these valves are nofl the self-closing type and are identical in. construction, 4Thesevalves each con- .:sistcof two.\dish. shaped. ilexiblel valve members arranged in facing relation.y and `having rims yieldablvontacting .eachother about :the peripherythereei. `/lithin .the Vspace between these ..fvalve members-.is :disposed a. sleeve .having ra ...dially disposedopenings through .which .liquid .enteringthe1sleeve-mayrpass in leaving' the, valve.

Two .dish shaped supportsv are` `situated. at the :ends .offltheisleeve andsuppert4 the valve mem- .2'3 '.bersrto .prevent .collapse (thereof. One ofv these "supportsv .has .af central, Aopening. `therein communieatingMth-the passageway l. .within said sleeve `and ladaptedetoeregister .with an opening `in the @Wall on 4Whicnthe valve is mounted. A. boltextendsthrough.a-Washeroverlying the other support. and. 1through the` opening in said iirstnamed ,.supportJand. said .-.WalL urging'V thesupport with the opening l andI the overlying -valve .member A.toward said f. walllto form a- `duid-tight ...connee- 45: tion therewith. .'Said bolt .further engages a crown afooton theopposite side.y ofV saidwall andv by v-ineans oflwhichztheparts are held mounted on said Wall. l:This crowfootstraddles .the opening :insaid .wallgand permits of the liquid passing through saidppening.

VIn .the4 drawings :lli-lig.. luis an.- .elevational .sectional .view of part 0f,- a1v pumpillustrating` an embodiment of the in- ,ventionV applied thereto land taken-substantially 55x t0n: line; i l. OIFSL'Z.

Fig. 2 is a plan sectional view of the pump taken substantially on line 2-2 of Fig. 1.

Fig. 3 is a perspective view of the valve apart from the pump and with the parts of the valve separated from one another.

The pump illustrated in the drawings is of the diaphragm type and is indicated by the reference numeral I8. This pump consists of a base I I, a body I2 resting upon said base, a head I3 overlying said body and a cap I4 mounted on top of the head I3. The pump I includes two pump units Ia and Ib which operate together to produce more uniform pressure. Both of these pump units being similar in construction only the pump unit Ita will be described in detail.

The body I2 is generally rectangular in form having vertically extending walls I5. These walls are constructed with spaced sections I5 connected together by webs I1 whereby surfaces I8 and I9 of extended width are formed at the upper and lower portions of each of the walls I5 and extending completely about said body.

The base II has vertical walls 28 which are formed with flanges 2I on which the surface I9 of the body I2 rests. ported by any suitable construction which, not forming any particular feature of the invention, has not been shown in the drawings.

The head I3 consists of vertical walls 22 which lie in continuation of the walls I5 of the body I2. The said head further has a horizontal wall 23 spaced above the lowermost portions of the walls 22 and connected thereto by means of perimetrically arranged walls 24 and webs 25. By means of this construction a surface 26 is formed at the lower portion of the head I3 which is of the same width and shape as the surface I8 of body I2 and which overlies said surface. The upper end of the head I3 has a surface 21 formed on the walls 22 which is parallel to the surface 26 and lies in a single plane.

Disposed between the surfaces I8 and 26 of the body I2 and head I3 is a diaphragm 28 of some flexible material such as rubber fabric or the like. This diaphragm is clamped in position between said surfaces in a manner` to be presently described in detail.

Overlying the head I3 is the cap I4. This cap is dome shaped in form having a top 23 and vertical walls 36 connected thereto. The cap I4 is formed at the lower ends of the walls 30 with a surface 3| which overlies the surface 21 of head I3. Between these surfaces is disposed a gasket 32 which forms a tight connection between the head and cap. A number of cap screws 33 extend through the cap I4, the head I3 and body I2 and are screwed into the base II. These screws hold the parts assembled and also serve to clamp the diaphragm 28 rigidly in place between the two surfaces I8 and 26 of the body I2 and head I3. In the cap I4 is formed a partition 34 which meets a partition 35 on the wall 23 of head I3 and divides the space above said head into two chambers 38 and 31. The chamber 38 serves as an inlet chamber to the pump which communicates through a pipe 38 With the source of iluid to be pumped. The chamber 31 serves as a discharge chamber for the pump and communicates through a pipe 39 with the system into which the fluid is pumped.

The base II supports a crank shaft 48. This crank shaft is rotatably mounted in bearings carried by the base II but not illustrated. Mounted on and operated by this crank haft is a connecting rod 4I forming part of the pump This base may be supunit IIIa. This connecting rod has mounted in it a ball bearing 42 which is carried by the crank shaft 40. This connecting rod has formed integral with it a piston 43 which has a surface 44 which engages the diaphragm 28. Issuing from this piston are three studs 45. These studs are formed with heads 46 which are imbedded in bosses 41 formed on the piston 43. Overlying the piston 43 is a follower 48 which has a surface 49 overlying the diaphragm 28. The studs 45 pass through the diaphragm 28 and through the follower 48. For clamping the piston diaphragm and follower together screws 50 are employed which are screwed into the studs 45. Washers 5I encircle these screws and bear against the follower 48. In the head I3 and between the walls 23 and 24 thereof and the diaphragm 28 is formed a chamber 52 which serves as the presu sure chamber of the pump.

The wall 23 of the head I 3 is formed with openings 53 and 54 which serve as ports bringing the chamber 52 into communication with the chambers 38 and 31. Associated with these two ports are two valves 55 and 56 utilizing the instant invention. The valve 55 is an outlet valve while the valve 56 is an inlet valve. Valve 55 is disposed in chamber 31 while valve 56 is disposed in chamber 52. These valves are identical in construction and only the valve 55 will be described in detail.

The valve 55 comprises two valve members 51 and 58 which are constructed of rubber, neoprene or some other suitable flexible material. These valve members are constructed as discs, dish shaped in form which have annular centers 59 with conical flanges 68 flaring outwardly therefrom. The extreme outermost portions of these flanges terminate in annular rims 6I The members 51 and 58 are arranged facing one another with the rims SI in engagement and the same are slightly squeezed together to procure firm contact between said rims. The members 51 and 58 are backed up by two dish shaped supports 62 and 63 which are similar in shape to said Valve members. These supports have annular centers 64 with conical flanges 65 aring outwardly therefrom and terminate in inwardly turned rims 86. Between the centers 64 of the supports B2 and 53 is a sleeve 61 which serves as a spacer to hold the said support in proper relation and to maintain an annular passageway 1I between the rims 66 of the supports 62 and 83. This sleeve has a longitudinal passageway 68 in the same and is formed in a, circle about the same with a number of openings 69 which bring the passageway 68 into communication With a valve chamber 1i] formed between the two valve members 51 and 58.

The valve 55 is supported in the following manner: In the upper surface of the wall 23 of head I3 and encircling the opening 54 is an annular recess 12. This recess receives the center 59 of member 58 as well as the center 64 of support 83. A Washer 13 overlies the member 51 and the support 62 and closes the opening through the said member and support. This washer has a downturned lip 14 at its outer edge and a depressed center 15 which forms in the underside of said washer an annular groove 16 in which the centers 59 and 64 of the member 51 and support 62 are received. A bolt 11 extends through this washer and below the wall 23 and also through a crowfoot 'I9 received in an annular re cess 8U formed in the underside of the wall 23 and encircling the opening 54 in said wall. The

head 8l of this bolt is received in the depression formed in the center 15 while a nut 82 screwed on the threaded end 83 of bolt 11 clamps the parts together.

The operation of the invention is obvious. When pressure is created in chamber 52 the Water or other fluid being pumped passes between the legs of the crowfoot 'i9 through the opening 54 in wall 23 which forms a longitudinal passageway leading into the passageway 68 in the sleeve B1. From here the water travels radially outwardly through the openings 89 and into the space between the supports 62 and 63. The water then passes radially outwardly through the passageway 7| and into the valve chamber l0. The valve members 51 and 58 being flexible are spread apart by the pressure of the Water and form a slit between the two rims 6 I of said valve members through which the Water escapes into the chamber 3l. The width of the passageway 1I determines fthe size of the slit formed between the rims 6l of said valve members, the amount of movement required to open said valve members and the resistance produced by the valve in the flow of the water through the same. As soon as the pressure in the chamber 52 reverses the pressure in chamber 37 forces the two lips 6i together to close the slit formerly formed therebetween and excludes movement of the water in the opposite direction. Valve 56 operates in the same manner as valve 55. By being arranged in invented relation with reference thereto causes loW from the chamber 36 and into the pressure chamber 52. It will hence readily be comprehended that the pump operates in the conventional manner to draw liquid through the inlet pipe 38 into the chamber 36 and into the pressure chamber 52. From this chamber the liquid is discharged into the chamber 31 from which it leaves the pump through the outlet pipe 39 as described.

The advantages of the invention are manifest. The invention is extremely simple in construction and can be manufactured at a nominal expense. The parts are stampings and screw machine products and the valve members may be molded from rubber, neoprene or similar flexible material and can all be constructed by equipment now readily available for the purpose. By the use of the ilexible valve members, sand or other foreign material present in the liquid being pumped passes readily through the valve Without injuring or impairing the operation of the valve. By utilizing an annular slit as the discharge passageway from the valve at right angles to the passageway leading into the valve, the rate of flow is extremely low at any locality of the slit and water hammer and other noises frequently present with valves is entirely eliminated. By the use of two ilexible discs contacting one another wear is extremely small and a valve constructed in accordance with the invention will operate almost indefinitely. Due to the annular slit through which the water or other liquid escapes being relatively large, movement of the flexible valve members is slight and fatigue and other injury to the valve members caused by operation thereof is almost entirely eliminated.

Changes in the specic form of the invention, as herein described, may be made Within the scope of what is claimed without departing from the spirit of the invention.

Having described the invention, what is claimed as new and desired to be protected by Letters Patent is:

1. In combination with a wall having an opening therein and a recess therein encircling said opening, a valve including two dish shaped ilexible valve members arranged in facing relation to form a chamber therebetween, each of said valve members having an annular center, a conical portion flaring outwardly therefrom and contacting rims at the edges of said conical portions, the center of one of said valve members being received in said recess, two dish shaped annular supports received within said valve members, said supports having annular centers disposed in the planes of the centers of said valve members, conical portions following along the conical portions of the valve members and rims extending toward one another, said rims falling short of the rims of said valve members, the annular center of one of said supports being received in said recess, a sleeve spacing said supports and forming an annular passageway between the rims of said supports communicating with said valve chamber, said sleeve having radially extending openings therein, a washer overlying the center of the other valve member and sleeve, a crowfoot engaging said wall on the opposite side thereof from said recess and a bolt extending through said washer and crowfoot.

2. In combination with a wall having an opening therein, a valve overlying said opening and disposed on one side of said wall, said valve including two dish shaped exible valve members arranged in facing relation to form a chamber therebetween, two dish shaped circular supports lying adjacent said valve members and forming supports therefor, a sleeve disposed between said supports and holding the same in spaced relation With the rims of the flexible members in Contact, the valve member adjacent said wall and the juxtaposed support each having an opening therein registering with and communicating with said opening in the wall, and forming a passageway extending into the valve, said sleeve having radially formed openings therein for bringing said passageway into communication with said chamber, a separate bridging member extending across the opening in said wall at one side thereof and engaging said wall, a Washer extending across the ilexible member furthest from said wall at the other side thereof, and a bolt extending through said washer, flexible valve members, supports, sleeve and bridging member and clamping all of said parts together.

RICHARD T. CORNELIUS.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 127,038 Field May 21, 1872 890,121 Brenner June 9, 1908 1,027,587 Hoffmann May 28, 1912 

